Get DIY detailed auto repair information for a 2013 Dodge Avenger from the name you trust - Chilton.
The manual usually doesn't come out until the bumper-to-bumper warranty expires (for example the Haynes 2012 Avenger won't come out until 2015). BUT, since its 95%+ the same car after 2008 (from what I understand) you will have a manual to look at, but will need to wait for a couple more years to have 3.6L info. This info came from when I bought my 2005 Grand Caravan. I wanted a manual right away. Suzuki Se 700 Manual on this page.
Haynes told me the info above, that they do not usually issue a manual until ppl actually have a need to buy it, which is generally after the bumper to bumper warranty expires. 1 1 Solutions Manual more.